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BMP-2 protein expression in the femoral head tissue by western blot analysis. (A) Western blot showed the expression levels of BMP-2 protein in the femoral head bone tissues in the normal control animals and experimental animals with or without decompression at each 2, 4 and 8 week time point; (B) Western blot results of BMP-2 expression in the femoral head was indicated by the ratio of band intensity of BMP-2 with GAPDH.
